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Single deflection transition box mount spiral pipe grille
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 6" Duct Opening (front blades parallel to shortest dimension)
Hand operated level for easy filter access and cleaning
Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper
" Spiral pipe diameter must be 4” larger than width of grille
Architectural Lattice Grilles 1307-4x6 Specialty Products Single deflection transition box mountStandard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1 2" lattice opening, 3 16" cross bars, 53% free area * 1306: 3 4" lattice opening, 1 4" cross bars, 57% free area * 1307: 13 16" lattice opening, 3 16? cross bars, 69% free area * 1308: 7 8" lattice opening, 1 4" cross bars, 60% free area * Soft White Options * Countersunk screwholes with matching Phillips #8 x 1 1 2" oval Screws * 10 or 12 gauge steel *
